An Oregon man who went to a hospital complaining of a headache was found to have 12 nails embedded in his skull from a suicide attempt with a nail gun, doctors say.

Surgeons removed the nails with needle-nosed pliers and a drill, and the man survived with no serious lasting effects, according to a report on the medical oddity in the current issue of the Journal of Neurosurgery.

The unidentified 33-year-old man was suicidal and high on methamphetamine last year when he fired the nails — up to 2 inches in length — into his head one by one.